Collection: Atlas Copco Towable Rotary Screw Air Compressors

Atlas Copco's tow behind line starts at 185 CFM at 100 PSI and steps up through 375, 750 and 900 CFM, with high pressure variants reaching 200 PSI for down the hole drilling. Every one of them is a diesel driven rotary screw on a trailer, which means 100 percent duty cycle. Unlike a piston compressor, there is no run time you have to respect.

The number that matters on site is CFM at the pressure you actually work at, not the headline rating. A machine rated 185 CFM at 100 PSI delivers less when you dial it up to 150 PSI, and a 60 pound breaker that wants 90 PSI at the tool will never see it through 200 feet of 1/2 inch hose. Size the hose and the manifold before you size up the compressor.

What these are not for

Indoor work, anything near a building air intake, and short intermittent jobs. Diesel exhaust rules out the first two. The third is just economics: an engine idling all day for twenty minutes of real air burns fuel and service hours for nothing. For intermittent shop air, a portable electric compressor or a stationary unit with a long hose costs a fraction to own.

Buying used, look at air end hours and the aftercooler rather than engine hours alone. Service intervals are published against the engine, but the air end and the separator element are the failures that hurt. Match your pneumatic tools and hose size to the CFM you have, compare against the rest of our towable air compressors, and confirm your tow vehicle's hitch rating and brake controller before delivery day.